When comparing CodeHub vs Working Copy, the Slant community recommends Working Copy for most people. In the question“What are the best GitHub clients for iOS?”Working Copy is ranked 2nd while CodeHub is ranked 3rd. The most important reason people chose Working Copy is:

Works with any Git remote, not just GitHub.
Clones to device letting you work offline and push when convenient.
Extends your other applications with iOS 8 app extensions.

Ranked in these QuestionsQuestion Ranking

Pros

Pro

Open Source

CodeHub is an open source project hosted on GitHub itself. As such, it's driven by the feedback from users themselves and is constantly under change and improvements.

Pro

Almost at feature parity with GitHub

CodeHub is almost at feature parity with Github.com itself as it supports the most major and widely used feature of GitHub. It has full support for issues, pull requests, notifications and repository management.

Pro

Not just GitHub, works offline

Works with any Git remote, not just GitHub.Clones to device letting you work offline and push when convenient.Extends your other applications with iOS 8 app extensions.

Pro

Allows other apps to access files

Working copy integrates with other apps to allow them to access and edit files through iOS8 document picker.

Pro

Clean UI

Pro

Frequent updates by the developer

Supports latest iOS features.

Cons

Con

Some features need in-app purchase

CodeHub is mostly free, but for push notifications and for GitHub Enterprise support users need to purchase these features for $1.99 and $0.99 respectively.

Con

Pushing to remote servers is not free

Working copy is free to download but requires a small in-app purchase to be able to support pushing to a remote server.